Urban Mammoth do two skirmish games in the same 'world': Urban War and Metropolis. These seem to be holding up ok on their own.
The platformer and chemical plant terrain kits are excellent. Some of their minis are fabulous. And some will even fit into our game. ie a pseudo japanese IG or PDF unit based on some of the triad models.
Once again, I'd reccommend on line shopping for the best price.